EP 3124147 B1 20191113 - COMPOSITE MEMBER AND CUTTING TOOL
Title (en)
COMPOSITE MEMBER AND CUTTING TOOL
Title (de)
VERBUNDBAUTEIL UND SCHNEIDWERKZEUG
Title (fr)
ÉLÉMENT COMPOSITE ET OUTIL DE COUPE
Publication
Application
Priority
- JP 2014059529 A 20140324
- JP 2015058869 W 20150324
Abstract (en)
[origin: EP3124147A1] A composite part (1) including: a cutting edge part (2) made of cubic boron nitride sintered material or WC-based cemented carbide; a cutting tool body (4) made of WC-based cemented carbide; and a bonding part (3) provided between the cutting edge part and the cutting tool body and bonding thereof, is provided. A primarily TiC layer (9) containing 50 area% or more of TiC is formed in an interface between the cemented carbide and the bonding part, the primarily TiC layer (9) having an average layer thickness of 0.5 µm to 3 µm; and a Ti-Ni enriched layer (8) containing each of Ti and Ni at 30 atomic% or more is formed adjacent to the primarily TiC layer (9), the Ti-Ni enriched layer (8) having an average layer thickness of 0.3 µm to 3 µm. An intermittent net structure (7) containing each of Ti, Ni and C at 10 atomic% or more is formed adjacent to the primarily TiC layer (9), a straight line overlapping with a major axis of each of crystal grains containing each of Ti, Ni, and C at 10 atomic% or more intersecting 3 or more other crystal grains.
IPC 8 full level
B23B 27/18 (2006.01); B23B 27/14 (2006.01); B23B 51/00 (2006.01); B23C 5/16 (2006.01); C23C 30/00 (2006.01)
CPC (source: EP US)
B22F 7/06 (2013.01 - EP US); B23B 27/18 (2013.01 - EP US); C22C 9/06 (2013.01 - EP US); C22C 14/00 (2013.01 - EP US); C22C 19/007 (2013.01 - EP US); C22C 19/03 (2013.01 - EP US); C22C 26/00 (2013.01 - EP US); C22C 29/02 (2013.01 - US); C22C 29/08 (2013.01 - EP US); C23C 30/005 (2013.01 - EP US); B22F 2005/001 (2013.01 - EP US); B23B 2222/28 (2013.01 - US); B23B 2224/28 (2013.01 - US); B23B 2226/125 (2013.01 - EP US); B23B 2228/105 (2013.01 - US); B23C 5/18 (2013.01 - EP US); C22C 2026/003 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3124147 A1 20170201; EP 3124147 A4 20171025; EP 3124147 B1 20191113; CN 106457415 A 20170222; CN 106457415 B 20181221; JP 2015182161 A 20151022; JP 6245520 B2 20171213; US 10286454 B2 20190514; US 2017120344 A1 20170504; WO 2015146966 A1 20151001
DOCDB simple family (application)
EP 15768915 A 20150324; CN 201580025874 A 20150324; JP 2014059529 A 20140324; JP 2015058869 W 20150324; US 201515127312 A 20150324